Adding Hostnames (Subdomains)

After you have created
and verified a zone, you can add
hostnames (subdomains) for the zone.

Subdomains of the same zone
can be configured on the same Salesforce B2C Commerce instance, or on different instances
of different realms of the same retailer. So, for example, it's possible
to configure www.shop.com on the Production instance,
test.shop.com on the Development instance, and eu.shop.com
on the Production instance of the EU realm.

To prevent damage to the
production experience, users on a non-Production instance can't modify
subdomains configured on other instances and can't modify certificates on
a zone that has at least one Production instance as origin. However, they
can add hostnames to existing zones with Production instance origins.
Users on Production instances generally can modify all CDN settings, even
if another Production instance of the same retailer is
impacted.

The Additonal Hostnames slider opens from the right
side of the page, showing the names of zones and hostnames
(subdomains) that you can add to the Embedded CDN Settings page. If
the list is long, you can search for specific zones and hostnames
using the search field.

Select a hostname in the list and click Add
Hostname.

Business Manager adds the hostname to the Embedded CDN
Settings page, as a child of its zone.

You can test inbound communication through the embedded CDN by
resolving your custom hostname to the IP address of the embedded CDN
locally (modify/etc/hosts).

The CDN domain name resolves to different IP addresses over
time. Using a fixed IP address is acceptable for testing purposes
only.

In your DNS server configuration: point the DNS record of your
hostname to the embedded CDN.

You must create a CNAME record. The value of the record is shown
in Business Manager.